package henu.cn.androidhomework.Login;


import android.app.Activity;

import java.util.ArrayList;
import java.util.List;


public class ActivityCollector {
    public static List<Activity> activities=new ArrayList<>();
    public static void addActivity(Activity activity){
        activities.add(activity);
    }
    public static void removeActivity(Activity activity){
        activities.remove(activity);
    }
    public static void  finishAll(){
        for(Activity activity:activities){
            activity.finish();
        }
    }
}
